Glass-discharging device



S. L. SEARS. GLASS DISOHARGING DEViCE.

APPLICATION FILED AUG. 19, 1914.

W1 M n H e N um W M ATM WITNESSES.

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s. L. SEARS.

GL-ASS DISCHARGING DEVICE.

APPLICATION FILED AUG. 19, 19M.

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S a GM W a (w ,4 TTOR/VEY S. L. SEARS.

GLASS DISCHARGING -DEVIGE..

APPLICATION FILED AUG.19, 1914.

Patented J 11116 8, 19200 3 SHEETS-SHEET 3.

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A TTOR/VEY' SYDNEY L. SEARS, OF LYNDHURST, NEW JERSEY, ASSIGNOR TOUNITED BOTTLE MACHINERY CO.-, 01? NEW YORK, N. Y., A CORPORATION OF NEWYORK.

Specification of Letters Patent.

GLASS-DISCHARGING' DEVICE.

rammed June 8, teen.

To all whom it may concern:

Be it known'that I, SYDNEY L. SEARS, a citizen of the United States, andresident of Lyndhurst, in the county of Bergen and State of New Jersey,have invented certain new and useful Improvements in Glass-DischargingDevices, of which the following is a specification.

My invention relates to apparatus for discharging liquid glass fromglass-melting furnaces and is especially designed for use in themanufacture of glass articles suchns bottles or the like, where it isdesired to draw off a small quantity of molten glass and to transfer itto a mold or the like in which the bottle is to be blown.

In apparatus of this kind it is of great importance that the moltenglass be maintained at a uniform temperature and consistency. The objectof my invention is to provide a tank or auxiliary furnace, adapted to beinterposed between the glass melting furnace and the glass-receivingmold in which the glass will retain its temperature and consistency, orwill even be heated to a higher degree if desired. A further object ofmy invention is to provide means whereby a measured and uniform quantityof molten glass can be transferred quickly and with great accuracy fromthe auxiliary furnace to the glass-receiving mold or other receptacle,without being exposed to the outside air, so that it cannot cool. Otheradvantages of my invention will appear from the description followinghereinafter, and the novelty will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings, in which Figure 1is a side elevation of my auxiliary tank or furnace attached to aglass-melting furnace (the'latten being shown in part only. and insection), this view showing also the means for controlling the glassoutlet; Fig. 2 is a top view corresponding to Fig. 1, with parts brokenaway: Fig. 3 is a front elevation of the auxiliary furnace and thecontrolling means, with parts omitted for the sake of clearness; Fig.-11 is a partial section on line 4-4 of Fig. 3; Fig. 5 is a verticallongitudinal section through the center of the auxiliary furnace, drawnon an enlarged scale; and Figs. (3 and T are horizontal sections takenon lines (3-(3 and 77 respectively of Fig.

The glass-melting furnace 10 (of any suitable construction) has anoutlet 11 controlled by a gate valve 11' and communicatmg with an inlet12 of a tank or auxiliary furnace 13 attached to the melting furnace andbuilt of fire clay or other fire-proof material. The inlet 12communicates with a chamber 14* preferably of circular shape, andunderneath the chamber 14 isprovided a similar chamber 15, these twochambers being separated from each other by a horizontal wall 16. An'apertured cover 17 is adapted to close an opening 16 in the wall 16, theaperture 17 in the cover 17 having an upper portion 17 flaring upwardlyand adapted to form a seat for a rod or plunger 18. The plunger 18,whose lower end normally closes the aperture 17", 17 extends upwardlythrough a cover 19 which is seated on the top wall 20'of the auxiliaryfurnace 13 and which closes an aperture 20 in said top wall. removingthe OOVOGI 19 and the plunger 18, the upper chamber 14 can easily beinspected, cleaned and repaired. An opening 21 is provided in the bottom21 of the furnace 13, said opening being in alinement with the opening16 in the horizontal wall 16, and its lower part preferably flaringoutwardly so as to afford easy access to the chamber 15 for cleaning orrepairing purposes.

Through the side wall of the furnace 13 extend two superposed obliquechannels or fines 23, 23, the upper of these flues, 23, communicatingwith the circular chamber 14 and the lower fine, 23, with the chamber15. Oil burners 24, 24 or like heating devices are provided to heat thechambers 14, 15 through the fines 23, 23 respectively. The lowerchamber15 has an off-gas or outlet flue 25 leading to an upright flue, or stack26, and the upper chamber 14 also communicates with said stack by way ofan outlet or off-gas flue 27 extending into the side wall from the upperportion of the glass inlet 12. Owing to the circular shape of'thechambers 14, 15, and to the oblique arrangement or direction of theinlet fines 23, 23' the flame orheating gases emanat-- ing from theburners 24, 24' will travel in a circular path through the chambers 14,15 and will leave these chambers through the off-gas fines 27, 25 andthe stack 26.

-My auxiliary furnace may be connected with the glass-melting furnace,and sun- )orted in an a ro riate manner. in

r I l surrounding the sides of the furnace 13, a

flange 35 on either end of said shell being secured to oneof theVertical I-irons by suitable bolts. A layer of asbestos 36 or the likeis preferably interposed between the walls of the furnace 13 and theshell 35. Additional means of support are, provided through metal straps37 secured to the shell 35 on either sideof the furnace, these strapshaving holes 37' at their upper portions,

into which the hook-shaped ends of'rods 38 are inserted. The upper endsof the rods extend through holes in the angle iron 32,

and are screw-threaded to receive nuts 39, suitable washers 40 beingprovided to engage thenuts and the angle iron 32. Pref erably, the rods38 consist of two separate pieces connected with each other by a turnbuckle 41 so that the length of the rods may be adjusted for the purposeof properly.

leveling the apparatus.

The mechanism for operating the pluner 18 which controls the outlet 17'rom the chamber 14 isshown in Figs. 1 to 4 and is constructed asfollows: The upper portion of the plunger, which latter is made of. fireclay or other suitable refractory ma terial, is connected rigidly, bymeans of a clamping ring 42to a sleeve 43 through which it extends. Forthis purpose the up per portion of the sleeve is formed with a slot asshown at 43'. A bracket 44 through which the sleeve 43 extends loosely,is adapted to hold the sleeve against lateral movement, and a screw 44'extending through the bracket 44 and into the slot 43 prevents thesleeve 43 from turning around its own axis, so that the sleeve will beable to perform only an up-and-down movement. The'other end of thebracket 44 is secured to the angle iron 32, as is also anothersupporting bracket 45, the purpose of which will be describedpresently.- At its central portion, the sleeve 43 has a lateral flange43", the lower surface of which is acam surface adapted to be engaged bya cam collar 46 which is supported by the bracket 45 and adapted to turnaround a sleeve 45' formed on the bracket 45. This sleeve por tion 45also surrounds the lower end of the sleeve 43 and forms aguide-therefor. In the normal position, the lower. surface of the flange43 and the upper surface of the cam collar 46 fit one into the other, sothat the outer surfaces of the flange 43" and of r the cam collar 46form together a continuous cylindrical surface.

The cam collar 46 is provided with lugs 46 located on opposite sidesthereof and pivotally connected with rods 47, 48. At theirother ends,these rods have pin-andslot connections .47, 48 respectively, withlevers 49, 50 fulcrumed at 49, 50' to brackets 51, 52 carried by thefurnace 13 or rather by the shell 35 surrounding it. It will be seenthat one of the rods, 47, is shorter than.

the other, so that the lower end of the corresponding lever 49 will bein advance of the lower end of the other lever. A push exerted on theprojecting lever will rock thecam collar 46, and this in turn will liftthe sleeve 43 with the plunger 18. Aspring 53.

isadapted to assist the sleeve 43 in returning to its lower position,after the cam collar 46 has resumed its original position. Additionalsupports for" the brackets 44 and "45 are provided in theshape ofbrackets 54, 55 secured to the auxiliary furnace by means of straps 56mounted on the shell 35. Thevgd chambers 14, 15 may be provided withpeep holes 57, 58 extending through the side wall of the furnace 13. I

The operation of my apparatus is, briefly described, as follows: Withthe gate 11' in the raised position, the glass melted in the furnace l0flows through 11 and 12 into the circular chamber 14, the normal glasslevel being indicated at G. The flames or heating gases-emanating fromthe burners '24, 24 will travel through the inlet flues 23, 23

into the chambers 14, 15, passing out through the outlet flues 27, 25 tothe stack 26. On

their'way, the gases do not only heat the 'lower end of. the lever 50,is pushedinward,

in the direction toward the furnace. This will cause the rod 47 to rockthe cam collar 46, and the cam surface of the latter will slide on thecam surface of the flange 43",

the sleeve 43 being held against following the rotation of the camcollar 46 by the screw 44. 'It will be clear that the sleeve 43 willthus be shifted upward, taking the plunger 18 with it and letting someliquid glass drop out through the outlets 17 17 and 21' into the mold M,which at that time will be in proper position under the opening 21'. Aportion of the heating gases in the chamber will pass out through 21'and escape between the mold M and the bottom wall 21 so that no cold aircan come into contact with the glass dropping out through 21'.

In order to shut off the supply of gas, the lower end of the lever 50,which through the rocking movement of the cam collar has been broughtforward, in advance of the lower end of the other lever, will be pushedinward, in the direction of the furnace, thus causing the cam collar toreturn to its original position, allowing the sleeve 43 with the plunger18 to drop down, partly by gravity and partly by the action of thespring 53,

jected to further treatment.

until the lower end of the plunger has become seated in the taperedoutlet 17 and this outlet closed.

The levers 49', 50 may be operated either by hand or by the machinecarrying the mold or molds to which the glass is to be supplied. In thelatter case, the operation will be entirely automatic, and the samemeasured quantity of glass will be supplied to .eachmold.

The heating of the two chambers 14: and 15 is of great advantage becausenot only is the glass kept at the desired temperature and not exposed tocold air during the time it is being transferred to the mold,but theglass also does not come into contact with any cold part of theapparatus from the time it leaves the melting furnace until it reachesthe mold in which it is to be sub- The glass therefore will be ofuniform consistency and plasticity throughout the operation of thetransfer.

I claim as my invention:

1. In a glass-discharging device, a fur nace having two superposedchambers having vertically-alined glass outlets, the upper chamberhaving a glass inlet, and independent means for heating said twochambers.

2. In a glass-discharge device, a furnace provided with two superposedchambers having registering glass outlets, the up er chamber having aglass inlet, separate in ets for admitting heating gases to saidchambers, and a common outlet for the heating gases preceding from bothchambers.

3. In combination with a glass-melting furnace, an auxiliary. furnacehaving two superposed chambers of substantially equal cross-sectionalarea, theupper one of these chambers communicating with the glassmelting furnace and having a glass outlet to the lower chamber, saidlower chamber hav-- ing an outlet in alinement with the firstnamedoutlet, means for controlling said first-named outletand means forheating both chambers.

4-. In a glass-discharging device, a furnace provided with superposedchambers having registering glass outlets, the upper chamber having aglass inlet, means for admitting and discharging heating gases to andfrom said chambers, the gas-outlet of the upper chamber being locatedadjacent to the glass inlet.

5. In combination with a glass-melting furnace, an auxiliary furnacehaving walls and outlet fines for the escape of such gases,

and means for controlling the glass outlet of the upper chamber.

6. In combination with a glass-melting furnace, an auxiliary furnacehaving walls forming two superposed chambers of circular shape, andsubstantially of equal diameters, the upper one of these chamberscommunicating with the glass-melting furnace and having a glass outletto the lower chamher, said lower chamber having an outlet in alinementwith the first-named outlet,

said walls having inlet fines for the admis-' sion of heating gases tosaid chambers and outlet fiues for the escape of such gases, thedirection of said inlet flues being at an angle to the radius of saidcircular chambers, and means for controlling the glass outlet of theupper chamber.

7. In a glass-discharging device, a con tainer provided with an outlet,a longitudinally movable plunger normally closing said outlet andprovided with a cam surface, a

cam collar of a shape corresponding to that of the cam surface,'andmounted to turn relatively to the plunger about the longitudinal axis ofsaid plunger, means for rocking said cam collar, and means for holdingsaid cam collar against longitudinal movement. 4

8. In a glass-discharging device, a .con-

tainer provided with an outlet, a-plunger movable lengthwise of saidoutlet and normally closing the same, a sleeve rigidly secured to saidplunger and provided with a cam surface, a cam collar of a shapecorresponding to that of the cam surface, and held against axialmovement, means for rocking said cam collar, and means for holding saidsleeve and plunger against rotation.

9. In a glass-discharging device, a furnace provided with an upperchamber having a glass inlet, a lower chamber having a glass outlet, anozzle establishing communication between saidchambers and locatedexteriorly of the lower chamber above said outlet, and means for passingheating gases through said chambers.

10. In a glass-dischargingv device, a furnace provided with superposedchambers and with a nozzle through which said chambers are adapted tocommunicate with each other, said nozzle being located exteriorly of thelower chamber, the upper chamber having a glass inlet, and the lowerchamber having a glass outlet in registry with said nozzle, means forpassing heating gases through said chambers, and a plunger adapted tobecome seated on said nozzle to close the same and extending upwardlyfrom said nozzle through said upper chamber, the lower chamber thusbeing unobstructed.

11. In a glass-discharging device, a glass container provided with anoutlet, a plunger normally closing said outlet and provided with;cam-engaging means, a cam collar mounted to turn relatively to saidplunger but held against longitudinal movement,'and means for rockingsaid camcollar.

12. In a glass-discharging device, a glasscontainer provided with anoutlet, a plunger normally closing said outlet and provided With.,a,-cam-engaging sleeve rigid with the said plunger, a cam collarthrough which the plunger is adapted to move lengthwise, said collarbeing arranged to cooperate with said sleeve, and being held againstlongitudinal movement, but mounted to turn relatively to the plungerabout the longitudinal axis of the plunger, and means for rocking saidcam collar.

13. In a glass-discharging device, a glasscontainer provided with anoutlet, a longitudinally-movable plunger normally closing said outletand provided with cam-engaging means, a cam-collar mounted to turnrela-v tively to said plunger but held against longitudinal movement,means for rocking said collar in one direction, and. separate means forrocking the cam collar in the opposite direction.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

SYDNEY L. SEARS. Witnesses:

P. C. Dom, GEO. ALEXAM.

